Question

9. What are the functions of an Operating system?

10. Discuss Utility Programs. List at least 5 utility programs.

11. List Advantages and Disadvantages of proprietary software.

12. An operating system performs Five basic processing task management techniques. List and explain each.

Answer 1

9.
   Functions of the operating system

   Process Management   -   It keeps the record of the process like which processes are currently executing, which may execute in future time and which process is kept to be on hold.

   Memory Management   -   It keeps the track of memory like allocating memory, freeing the allocated memory, reading from the disk, managing cache.

   Device Management   -   It keeps track of hardware devices that are attached to the system, how they are interacting and what type of device they are.

   Security       -   It prevents the system from unknown bugs, threats, malware and viruses and reports to the user.

   File Management       -   It manages files that are stored on the disk, reading writing, copying, deleting.

10.
   Utility Softwares generally helps to manage, maintain and control the computer resources.

   Some basic utility software:
  
   Antivirus - Quick Heal
   Data Compression Software - Win RAR
   Disk Defragmenter - Windows disk defragmenter
   Driver Manager
   Network Manager
   Registry Cleaner

11.
   Proprietary software is the software bundle in which source code is kept as a secret only the object code is released for the users.

   Advantage:   They provide easy troubleshooting
           They have very good features
           They have regular updates

   Disadvantage:   Source codes are not available for public
           Not free